QUERCETIN is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.
QUERCETIN
Safety grade: A
Quercetin is a plant-based compound found naturally in fruits, vegetables, and herbs that acts as a powerful protector against environmental damage. It helps shield skin from free radicals and reduces inflammation.
This ingredient is used in cosmetics to protect skin from oxidative stress and pollution while improving skin comfort and maintaining a healthy, calm complexion.
Graded using: COSING, FDA.
Last verified: May 26, 2026
Other Antioxidant ingredients
- TOCOPHEROL — Grade A
- TOCOPHERYL ACETATE — Grade A
- BHT — Grade C**
- ASCORBYL PALMITATE — Grade A
- HYDROXYACETOPHENONE — Grade A
- PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE — Grade A
- ASCORBIC ACID — Grade A
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A